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The Astrophysical Journal Supplement (ApJS)

Resumen/Descripción – provisto por la editorial en inglés

The Astrophysical Journal Supplement is an open access journal publishing significant articles containing extensive data or calculations. ApJS also supports Special Issues, collections of thematically related papers published simultaneously in a single volume.

Palabras clave – provistas por la editorial

astronomy; astrophysics

Disponibilidad

Institución detectada	Período	Navegá	Descargá	Solicitá
No detectada	desde dic. 1996 / hasta dic. 2023	IOPScience

Información

Tipo de recurso:

revistas

ISSN impreso

0067-0049

ISSN electrónico

1538-4365

Editor responsable

American Astronomical Society (AAS)

Idiomas de la publicación

inglés

País de edición

Reino Unido

Información sobre licencias CC

https://creativecommons.org/licenses/by/4.0/

Cobertura temática

Ciencias físicas

Tabla de contenidos

doi: 10.3847/1538-4365/abf929

The Ultraviolet Extinction Map and Dust Properties at High Galactic Latitude

Mingxu Sun; Biwei Jiang; Haibo Yuan; Jun Li

<jats:title>Abstract</jats:title> <jats:p>Extinction in ultraviolet is much more significant than in optical or infrared, which can be very informative to precisely measure the extinction and understand the dust properties in the low-extinction areas. The high Galactic latitude sky is such an area, important for studying the extragalactic sky and the universe. Based on the stellar parameters measured by the LAMOST and GALAH spectroscopy and the ultraviolet photometry by the Galaxy Evolution Explorer (GALEX) space telescope, the extinction of 1,244,504 stars in the GALEX/near-UV band and 56,123 stars in the GALEX/far-UV band is calculated precisely. The error of color excess is 0.009, 0.128, and 0.454 mag for <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{{G}_{\mathrm{BP}},{G}_{\mathrm{RP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn1.gif" xlink:type="simple" /> </jats:inline-formula>, <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{\mathrm{NUV},{{\rm{G}}}_{\mathrm{BP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn2.gif" xlink:type="simple" /> </jats:inline-formula>, and <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{\mathrm{FUV},{{\rm{G}}}_{\mathrm{BP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn3.gif" xlink:type="simple" /> </jats:inline-formula>, respectively. They delineate the GALEX/near-UV extinction map of about a third of the sky mainly at the high Galactic latitude area with an angular resolution of ∼ 0.°4. The mean color excess ratio in the entire sky area is derived to be 3.25, 2.95, and −0.37 for <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{\mathrm{NUV},{{\rm{G}}}_{\mathrm{BP}}}/{E}_{{G}_{\mathrm{BP}},{G}_{\mathrm{RP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn4.gif" xlink:type="simple" /> </jats:inline-formula>, <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{\mathrm{FUV},{{\rm{G}}}_{\mathrm{BP}}}/{E}_{{G}_{\mathrm{BP}},{G}_{\mathrm{RP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn5.gif" xlink:type="simple" /> </jats:inline-formula>, and <jats:inline-formula> <jats:tex-math> <?CDATA ${E}_{\mathrm{FUV},\mathrm{NUV}}/{E}_{{G}_{\mathrm{BP}},{G}_{\mathrm{RP}}}$?> </jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjsabf929ieqn6.gif" xlink:type="simple" /> </jats:inline-formula>, respectively, which is in general agreement with the previous works, and their changes with the Galactic latitude and the interstellar extinction are discussed.</jats:p>